NOCTI Mechatronics 5
The transformer winding to which the line is connected is called the _________ winding.
primary
Which of the following is true of a control transformer?
It has two input coils and one output coil
How do you change the direction in a split-phase motor?
Switch the connection to the starting winding
In a split phase motor, which of the following statements is true?
The starter winding is a smaller size wire than run winding wire.
Which is true of an induction motor?
There is no physical electrical connection to the rotor
The following diagram represents a/an _______________ transformer. file:///C:/Users/20gderr/Downloads/0_0.png
isolation
What is the purpose of the capacitor in a capacitor-start motor?
To create a phase shift between the run winding and the start winding
How does a three-phase motor windings get connected for low-voltage?
parallel
The low voltage windings of a three phase motor are connected in .
parallel
What is the main purpose of the centrifugal switch in a capacitor-start motor?
It is closed at start-up to place the capacitor in series with the Start winding which creates the phase shift needed to rotate the rotor
How do you reverse the direction of rotation in the split-phase motor?
Reverse the polarity of the start winding
An electric motor is used to change?
electrical energy into mechanical energy
A motor _______________ is a motor controller that includes overload protection.
starter
The winding ratio of a _______________ transformer has a rating of 3:1 winding ratio?
step-down